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MB Stone Care  |  SKU: MB-2QT
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MB Stone Care MB-2 Alkaline HD

Regular price $18.97 USD
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Size

Description

MB Stone Care MB-2 Alkaline HD Heavy-Duty Stone, Tile & Grout Cleaner

MB-2 Alkaline HD is a super-concentrated, high-pH cleaner for restoration-grade deep cleaning. Its alkaline chemistry lifts mineral build-up, ground-in soil and cementitious haze from natural stone, ceramic and porcelain tile, and grout without attacking calcium-based stone the way acid strippers do. Dilution is adjustable from 3 to 8 fl oz per gallon (25-65 mL/L) so one bottle covers light film-lift through heavy restoration.

Features

  • High-pH concentrate (pH 12.5 ± 0.5 neat) for restoration-grade soil removal
  • Alkaline chemistry attacks dirt, not calcium carbonate — preserves polish and color on marble, travertine and limestone
  • Readily biodegradable surfactants; formulated without butyl glycol
  • Adjustable dilution: 3 fl oz/gal light, 6 fl oz/gal medium, 8 fl oz/gal heavy soil
  • Works on natural stone, glazed and unglazed ceramic or porcelain tile, and cement grout
  • Complete water solubility — rinses out of porous grout joints
  • Available in 32 fl oz quart and 128 fl oz gallon
Part No Size Format
MB-2QT 32 fl oz (1 quart / 0.95 L) Concentrate
MB-2GAL 128 fl oz (1 gallon / 3.79 L) Concentrate
  1. Sweep or vacuum away loose grit and debris. Strip any wax or topical sealer first — coatings block chemical contact. Test on an inconspicuous area to confirm colorfastness.
  2. Mix with hot water: 3 fl oz per gallon (25 mL/L) for light soil, 6 fl oz per gallon (50 mL/L) for medium, 8 fl oz per gallon (65 mL/L) for heavy soil. Hot water maximizes surfactant activation.
  3. Apply liberally with a pump-up sprayer or microfiber mop until the joints stay wet; use a saturated sponge or cotton rag on counters and small areas.
  4. Let the solution dwell. Heavier contamination benefits from a longer contact window, up to 10 minutes. Never let the product dry on the surface.
  5. Agitate: nylon deck brush on tile faces, stiff short-bristle hand brush in grout joints. On large stone floors a 175 rpm machine with a white pad speeds the work.
  6. Extract the slurry with a wet/dry vacuum (or mop for small areas), then rinse twice with plenty of clean water.
  7. Once the surface is bone dry, buff to a uniform finish with a clean white nylon pad, then seal with MB-24 Plus Barrier to inhibit re-staining.
  8. Wear gloves throughout; add a mask if you are sensitive to odor. Read the Safety Data Sheet before use.
Property Detail
Brand MB Stone Care
Product Type Alkaline heavy-duty cleaner (concentrate)
Appearance Clear liquid, characteristic odor
pH (neat) 12.5 ± 0.5
Specific Gravity 1.030 ± 0.005
Water Solubility Complete
Dilution Range 3-8 fl oz per gallon (25-65 mL/L)
Best Used On Natural stone, tile, grout and other hard surfaces
Application Method Mix, apply, dwell, scrub, rinse
Applicator Mop, sprayer, rag or sponge (not included)
Available Sizes 32 fl oz quart, 128 fl oz gallon
Developer MB Stone Professional®
Which surfaces can I use this alkaline cleaner on?

Just about any hard surface that is not harmed by water: natural stone such as marble, granite, quartz and limestone, plus ceramic or porcelain tile and cement grout.

Is MB-2 safe for kitchen counters?

Yes. Rinse thoroughly as directed and follow with a daily cleaner such as MB-5 Stone & More before returning the surface to food service.

Can I use it every day on honed marble?

No. MB-2 is restoration-grade, not a daily wipe. Use it only when the soil load exceeds what a neutral daily cleaner can handle.

Do I need to prepare the surface first?

Yes. Remove all debris, strip any wax or topical sealer, and always test in an inconspicuous area before full application.

Does MB-2 protect against future staining?

No. It is strictly a cleaner. Follow with MB-24 Plus Barrier to seal the surface and inhibit staining.

What protective equipment should I wear?

Gloves are recommended, and a mask if you are sensitive to odor. Consult the Safety Data Sheet for full safety guidance.

⚠ WARNING: Cancer and Reproductive Harm — www.P65Warnings.ca.gov. Always wear appropriate PPE.